HP LTO 4 SAS User Manual
Page 35
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If for some reason you cannot upgrade to the minimum patch level, you can make the following file
modifications to enhance performance:
1.
In the file /kernel/drv/st.conf, after these lines:
########
# Copyright (c) 1992, by
Sun Microsys tems, Inc .
#ident
"@(#)st .conf
1.6
9 3/05/03 S MI"
add the following depending on which version of operating system you are installing (there are
6 significant spaces between HP and Ultrium in line 2):
for Solaris 8 without st patch:
tape-co nfig-lis t =
"HP Ultri um 4" ,"HP Ultrium LTO 4","H P_LTO_GEN _4";
HP_LTO_ GEN_ 4 = 1,0x36,0, 0xd639,4, 0x00,0x42 ,0x44, 0x46,3;
name="s t" class ="scsi " target= X lun =0;
where X is the SCSI target address of the device you have attached.
for Solaris 9 and 10 (and 8 with st patch):
tape-co nfig-lis t =
"HP Ultri um 4" ,"HP Ultrium LTO 4","H P_LTO_GEN _4";
HP_LTO_ GEN_ 4 = 2,0x3B,0, 0x18659,4 ,0x00, 0x4 2,0x44,0x 46,3,60, 1 200,
600,120 0,600,60 0,18000;
name="s t" class ="scsi " target= X lun =0;
where X is the SCSI target address of the device you have attached.
See
below for the values of the parameters in these lines.
2.
If you are replacing an existing tape device on the same SCSI ID, remove the contents of the
/dev/rmt
directory as follows:
# c d /d ev/rmt
# r m *
3.
Instead of rebooting the device, follow these steps.
a. Find the kernel module ID:
# mo dinfo | grep “st (“
96 6 0dcc000 cdb0 33 1 st (SCSI Sequenti al Access Driver)
In this example the ID is 96.
b. Unload the kernel module:
# mo dunload -i 96
c. Load the kernel module back in:
# mo dload -p drv/st
d. Rebuild the device paths:
devf sadm -C
devf sadm -i st
For further details, see “How do you load st.conf changes without rebooting,” SunSolve
document 18010, on
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